According to coking in pyrolysis condensate heater, the main cause is found by analyzing the principle of process design and coking. Relevant prevention measurements are put forward.

Causes of coking in the heater of delayed coker have been analyzed and the mechanism of coke formation has been studied. On the basis of the analysis, CAF anti-coking agent has been developed.

To ensure the heater for safe operation, a thermocouple is pro - posed to install on the tube wall to protect the heater tube from coking.